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OpenStudy (anonymous):
tan (pi/2+ theta) and tan (pi/2-theta)
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OpenStudy (raden):
that all are identities, u have to memorize them tan (pi/2+ theta) = -cot(theta) tan (pi/2-theta) = cot(theta)
OpenStudy (anonymous):
Can you verify please?
OpenStudy (raden):
which parts, i already worked that :)
OpenStudy (raden):
this site useful for u http://en.wikipedia.org/wiki/List_of_trigonometric_identities
OpenStudy (anonymous):
Thnakx
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OpenStudy (raden):
you're welcome :)
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